Between March 1976 and May 1980 the South African Railways placed one hundred Class 35-400 GE U15C diesel-electric locomotives in service, numbered in the range from 35-401 to 35-500. Designed by General Electric, they were built in two batches by the South African General Electric-Dorman Long Locomotive Group (SA GE-DL, later Dorbyl).See also the Wikipedia article on the South African Class 35-400.